Midmar Dam Level:
Why Pietermaritzburg Taps Still Run Dry

The Midmar Dam level was 89.55% on 22 October 2026, according to uMngeni-uThukela Water's daily dam table, against 94.08% on the same date a year earlier. The dam is nearly full, and the uMngeni system it belongs to began this operating year effectively full. When taps in Pietermaritzburg run dry, the dam is not the reason. The cause sits between the dam and your house: in the treatment works, the city's reservoirs and the pipes under the street.

We are Pietermaritzburg plumbers, so this looks at the supply from the house end. Below are the level and two places to check it yourself, then the route the water takes from Midmar to the kitchen tap, where it gets held up on the way, and what the restart does to the plumbing inside a house. That last part is where a dry street turns into a repair.

How full is Midmar Dam today?

The two official sources for the Midmar Dam level agree on their latest readings:

Full, Midmar holds about 235 million cubic metres; the department lists its full storage capacity as 235.5 million. On 22 October it held 210.8 million. The dam has stood on the uMngeni River in the Midlands since 1965, and between the department's two latest weekly reports its level slipped from 90.6% to 89.5%.

A slow fall at this time of year fits the calendar. Pietermaritzburg gets most of its rain in summer: on the South African Weather Service averages, January brings about 155 mm and July about 2 mm. An October reading comes after the dry winter months, before the summer rain has had a chance to top the dam up.

Where to check the Midmar Dam level yourself

uMngeni-uThukela Water's rainfall and dam data page has a dated table for Midmar and the other dams it manages, showing each dam's volume, how full it is and the figure for a year before. The Department of Water and Sanitation's weekly state of dams for KwaZulu-Natal lists Midmar with this week, last week and last year side by side. The two take their readings on different days, so expect them to differ by a few tenths of a percent. The figures in this post were read on 22 October 2026.

How full are the dams in the uMngeni system?

Midmar is one dam in a chain. The uMngeni system, which supplies Msunduzi and other municipalities along the river, stood at 89.07% on 22 October 2026, against 92.71% a year earlier, on uMngeni-uThukela Water's table.

What matters more for this year is where the system started. In August 2026 the Sunday Tribune reported the department's outlook for the 2026/27 operating year, which runs from 1 May 2026 to 30 April 2027. Quoting departmental spokesperson Wisane Mavasa, it said the uMngeni Water Supply System "began the operating year at a storage level of 99.5%, which is effectively full", and that no restrictions were required.

The same report carried a line worth reading twice: reducing water use "remains essential to ensure the supply remains within the infrastructure capacity". The limit it names is the capacity of the pumps, pipes and treatment works, not the water behind the dam wall. It points at the same place this post does.

The 2025 cuts came from a licence, not an empty dam

Pietermaritzburg has had its bulk supply cut before, and the dam level was not the trigger then either. In a statement on 18 August 2025, uMngeni-uThukela Water said curtailments would be reintroduced from Monday 1 September 2025 for Msunduzi and two other municipalities, "in keeping with the abstraction licence conditions" set by the Department of Water and Sanitation. The aim, The Mercury reported, was to bring the water drawn from the dams back in line with the volumes the licence permits. The statement said dam levels in the system were stable, and that earlier curtailments had been suspended "following a healthy summer rainfall season and overflowing dams".

The Witness reported that the city's daily allocation was cut from 226 to 197 megalitres. Msunduzi said it would comply through "pressure reduction initiatives, restrictions on reservoir outlets, meter flow control measures" and disconnections of illegal and tampered infrastructure, and warned of "low water pressure in certain areas and occasional water outages" (The Mercury, 31 August 2025).

2026 looks different on paper: the system started full and the department said no restrictions were needed. The outages carried on regardless, which tells you where to look.

Why Pietermaritzburg taps still run dry when Midmar is nearly full

Water from Midmar passes through five stages on its way to a Pietermaritzburg tap, and any one of them can stop it.

1. Midmar Dam. 89.55% full on 22 October 2026. Raw water leaves it by pipeline.
2. The treatment works. The bulk supplier treats Midmar water at DV Harris and at Midmar Water Works.
3. The city reservoirs. Belfort, Claridge and Clarendon are three that DV Harris fills.
4. The street mains. Msunduzi's pipes. When they burst or drain, the street goes dry.
5. Your meter and stopcock. The point where the street supply meets the pipes in your house.

Every stage after the dam has failed at some point in recent years.

The treatment works

In February 2022 two of the four pumps that carry raw water from Midmar Dam to Midmar Water Works broke down, leaving a 40-megalitre shortfall of raw water, and Umgeni Water, as the bulk supplier was then called, warned of reduced supply in parts of Pietermaritzburg. A month later, algae in the raw-water pipeline clogged the filters at DV Harris, the Claridge, Belfort and Clarendon reservoirs received less water, and parts of the northern suburbs had low pressure or none. In February 2024 an Eskom power outage stopped Midmar Water Works altogether, and the notice listed parts of Pietermaritzburg among the areas cut off.

The reservoirs and their outlet pipes

Belfort Reservoir, in the bulk supplier's own description, serves the northern areas of Pietermaritzburg. In July 2026 The Witness reported that residents of Bayat Road, Rupar Road and Sukhi Road in the northern suburbs had lived with an unreliable supply for months. Msunduzi said a planned shutdown at Belfort had been carried out to replace a 400 mm outlet pipe, that emergency repairs by uMngeni-uThukela Water had added to the interruptions, and that the Rupar Road Reservoir ran dry on both occasions. One resident said water sometimes came back for only an hour.

A month later a resident of Orient Heights told the same paper: "We don't have water every day for the last four months from the morning till 1pm." Councillors were advising residents to store water for drinking and for flushing toilets.

The street mains

The pipes under the roads carry their own age. Evidence to a South African Human Rights Commission inquiry, reported by GroundUp in August 2022, was that ageing infrastructure caused at least six burst pipes a day across Msunduzi in the 2021/22 financial year. When mains burst under Victoria Street and Greyling Street in January 2024, the city centre between Chief Albert Luthuli Street and Peter Kerchoff Street lost its water. The first pipes to fail were asbestos cement. The next to go was cast iron.

None of these failures had anything to do with how much water was in Midmar. A full dam is why the department saw no need for restrictions this year. It cannot keep a pump running, a reservoir topped up through a shutdown, or an old main from splitting.

What a full dam can't do for the pipes in your house

For a house, the risky moment is the restart rather than the outage. Msunduzi's acting communications manager, Nompumelelo Mthembu, described it in July 2026, speaking about the city's own pipes: "Once the water supply was restored, the system had to refill, which resulted in burst pipes due to the increase in pressure." The Witness also reported her explanation that pressure "gradually builds until it stabilises", and that air enters the system when it runs dry, which "contributes to pipe bursts as it refills".

A house goes through the same thing on a smaller scale. While the street is dry, the pipes inside drain and air moves in. When the supply returns, the water comes back with a jolt, and the weakest fitting on the property takes it first: a flexible tap connector, a toilet's float valve, the valves on a geyser, an old threaded joint. If something was close to failing, this is often when it goes.

Three habits make the restart less likely to end in a burst:

• Know where your main stopcock is, and check that it turns. If your street goes dry often, closing it while the supply is off lets the house refill when you choose.
• When the water is back, open the stopcock slowly with one tap running, so the air can escape before full pressure arrives.
• Once the supply has settled, close every tap and look at the water meter. If the dials still move with nothing running, water is leaving somewhere on your side.

An isolating valve under every basin, toilet and appliance helps too: when one connector fails, you shut off one fitting instead of the whole house. If something has already given way, our page on burst pipe repairs in Pietermaritzburg sets out what to close first, depending on where the pipe burst. And if you would rather have it looked at, the request form below reaches us, and we phone you back.